Road oiling machine



March 28, 1939. B, FAwLEY 2,152,407

ROAD OILING MACHINE Filed July 20, 1937 Patented Mar. 28, 1939 PATENTOFFICE ROAD OILING MACHINE Granville B. Fawley, Cootes Store, Va.,assignor of one-fourth to George S. Aldhizer, Harrisonburg, Va.

Application July 20, 1937, Serial No. 154,654

5 Claims.

This invention relates to machinesfor oiling or otherwise treating roadswith a surfacing material in fluid or liquid form and is particularlyconcerned with an improved type of header and nozzle assembly for suchmachines.

An objectionable feature in known prior machines for applying oil orlike viscous fluids or liquids to the surface of the road is that afterthe oil supply is cut off from the header or from the distributingnozzles connected to the header, the oil continues to drip or flow fromthe nozzles to the road surface, and this not only wastes the oil but inmany instances surfaces are coated or sprinkled which were not intendedor desired to be so treated.

An important object of the present invention is to provide in a roadsurfacing or oiling machine means for overcoming this objectionablefeature.

Another object of the invention is to provide a nozzle particularlyadapted for road oiling or surfacing machines which drains relativelyquickly and cleanly and does not require any special shut off mechanismfor either the individual nozzle or the header to which it may beapplied to prevent dripping after the supply is shut off from theheader.

Another object is to provide a nozzle for the purpose specified whichmay be easily and quickly removed and thoroughly cleaned wheneverdesired.

The foregoing and other objects and advantages will become more apparentin view of the following description taken in conjunction with thedrawing, wherein;

Fig. 1 is a rear elevation of a road surfacing or oiling machinecarrying a header and nozzle assembly constructed in accordance with thefeatures of the present invention;

Fig. 2 is an enlarged fragmentary perspective view of a portion of theheader and nozzle assembly; and,

Fig. 3 is a substantial central vertical section of a portion of one ofthe nozzles.

Referring in detail to the drawing, the machine in Fig. 1 includes amain supply tank 5 having connected thereto oil discharge pipes or lines6 and 6a which feed into headers I having a plurality of nozzles 8connected thereto. As will be clearly apparent from Fig. 2, each nozzleis connected into the header along the upper or top surface thereof orabove the normal oil level therein and may project upwardly a shortdistance therefrom. The body of the nozzle is turned in a substantiallyhorizontal or slightly arcuate plane and is then projected downwardlyand terminates in a nozzle proper. In the form shown, the nozzle body ismade up of nipples 8a. and 8b the nipple 8a being threaded into theheader and the nipple 81) being threaded into 8a; 5 and connected to thenipple 811 by means of a sleeve or ferrule is the nozzle proper 811.This assembly permits ready detachment and cleaning of the nozzle as awhole. Due to the particular shape of the nozzle body and the fact thatit is connected to the top portion of the header 1, or above the normaloil level therein, as soon as the oil supply is cut off and pressurereleased from the oil supplied to the header 1, in the said body therewill remain only a comparatively small or minute quantity to drip orpass from the nozzle proper 811. It will thus be seen that upon shuttingoff the oil supply from the header, there will be practically nodripping of the oil. Furthermore, if the machine should happen to setfor a while between periods of use, the nozzles will be freed of oilautomatically, preventing the latter from congealing and clogging up thenozzle outlet.

It is preferred to arrange the nozzles in staggered relation withrespect to opposite sides of the header, to thereby obtain a more evenor uniform distribution of the oil, the particular shape of the nozzlesas a whole facilitating this arrangement. 30

It will be understood that the foregoing and other advantages notenumerated are inherent in the improved nozzle structure and that thelatter may be varied in certain aspects in order to attain suchadvantages within the scope of the invention as defined by the appendedclaims.

I claim:

1. In a road oiling machine, a substantially horizontally disposedtubular header, and a plurality of-nozzles connected to said header,each of said nozzles comprising a substantially elbow shaped nipplewhich is tapped into the header along the upper portion thereof andprojects upwardly therefrom and a discharge nozzle connected to saidnipple and having a substantially elbow shaped portion which togetherwith said nipple forms a substantially inverted U-shaped nozzle, thedischarge end of the nozzle being projected downwardly and terminatingat a point substantially in alignment with or below the bottom of theheader.

2. In a road oiling machine, a substantially horizontally disposedheader, means for supplying oil to said header, and a nozzle fordischarge ing oil from said header onto a road surface,

said nozzle at its intake end connecting with the header above thenormal level of oil therein and having a nozzle body extending laterallyof the header also above the said normal level and terminating in adischarge end which is projected downwardly and terminates at a pointsubstantially in horizontal alignment with or below the bottom of theheader.

3. In a road oiling machine, a substantially horizontally disposedheader, means for supplying oil to said header, one or more nozzles fordischarging oil from said header onto a road surface, each of saidnozzles having its intake end tapped into the header along the upperportion of the latter above the normal level of oil in the header andhaving a nozzle body which projects upwardly from the point where it istapped into the header and then laterally and downwardly to bring thedischarge end of the nozzle to a point substantially in alignment withor below the bottom of the header, the laterally extending portion ofthe nozzle body being above the horizontal level of the header.

4. In a road oiling machine, a substantially horizontally disposedheader, means for supplying oil to said header, and one or a pluralityof nozzles for discharging oil from said header onto a road surface,each of said nozzles at its intake end projecting downwardly into thetop or upper portion of the header so as to communicate with the latterabove the normal level of oil therein and having a nozzle body ofsubstantially inverted U-shaped form which projects laterally to oneside of the header and then downwardly to bring the discharge end of thenozzle substantially in alignment with or below the bottom of theheader. 5. In a road oiling machine, a substantially horizontallydisposed header, means for supplying oil to said header, and one or aplurality of nozzles for discharging oil from said header onto a roadsurface, each of said nozzles at its intake end being tapped into thetop or upper portion of the header above the normal level of oil thereinand having a nozzle body of substantially inverted U-shaped form whichprojects laterally to one side of the header and then downwardly tobring the discharge end of the nozzle substantially in alignment with orbelow the bottom of the header, said nozzle being made up of sectionswhich are detachably connected to one another to facilitatedisassembling and cleaning of the nozzle.

GRANVILLE B. FAWLEY.

